Did you know that antibiotics could affect the menstrual cycle? Indeed, most of them can have an effect on menstrual periods, with some reporting delays. Find out more about the connections between antibiotics and the menstrual cycle below. Your Regular Cycle During the first 14 days of a 28-day menstrual cycle, your follicle will start to grow and kick-start the initial production of additional estrogen. It will start to make the endometrium lining thicker. When ovulation commences, the estrogen hormone will be joined by the progesterone hormone from the corpus luteum to make the endometrium mature and thicker. How Antibiotics
Antibiotics and menstrual cycle
Hello,
I had cephalexin for a urinary tract infection starting on 19th August. I took them for 7 days. Period due on Wednesday 30th August and I had it for 1 day on Thursday 31st and then nothing on Friday 1st. Is this normal for it to effect it this much? Normal period lasts around 4 days but are usually quite light.
Had sex a couple of days before period due around 27th and 29th. If i bled even for just 1 day could i be pregnant?
Thanks
Hello Rachel, antibiotics are known to disrupts a female’s cycle. If you had unprotected sex around the time of which your period was due then you might have conceived. If you have a missed period the next time around please take a pregnancy test 7 days after.
My wife is having a problem during her menstrual cycle after the use of a medical abortion kit 1 year ago. Now the bleeding is low and last only for two to three days as earlier it occurred in a right way for 3 to 5 days. Please help me and prescribe me some medicine.
Hello Surveen, I am sorry there is no medicine I can prescribe to make her menses normal. However please read the link below to get more information on this.
https://womanjunction.com/menstrual-cycle-abortion/
Hi , I am currently dealing with an ear infection. It happened the 30th of August I went that day and picked up over the counter Tylenol for severe sinus and within 2 days I took 12 then stopped those . Then on Sep 2 I was prescribed ibuprofen 800 and I’ve taken about 6 . My cycle came on the 2nd and it ended the 4th ? Is that normal
Hi there Z, the taking of these medications might have interrupted your cycle.
Hi have been taken APo -roxithromycin antibiotics for a ear infection but my period was to come on the 2nd of September 2017 but still nothing will the antibiotics be the cause thanks
Hello Adriana, yes anti-biotics normally cause menstrual delays.
I took acivir 800 , allegra and still taking nurokind gold was suffering from herpes zoster had unprotected sex on 29 july got my periods next day only i am 4 days late for my periods
Hello Shobha, please take pregnancy test 7 days after missed period.
Hi. I had period last of 19 of last month. And then this month I was having fever n farengit tissue so I took antibiotics. And till now I m not getting my period please tell me what may be the reason?
Hi there Subu, the antibiotic might be the reason why your period is delayed.
My boyfriend and I had unprotected sex at least 3 times this month however he never came in me or at all for that matter. And never during my fertile window. I have been on chephlix (or something like that) for 10 days for a recurring case of strep. My cycle is typically 28 days long however last month it was 33 days after being on antibiotics and today is day 34 of this cycle. I have taken one pregnancy test and it came back negative. And I have yet to start my period. Help…
Hi there Kristen, the antibiotics is what might have cause the delay in your period.
Am taking doxyciline, cifran and flagyl for PID my period is delayed seven days i did pregnancy test(blood) its positive but i don’t have any symptoms pls help me
Hi there Hundeyin, if blood test for pregnancy shows positive this means your are pregnant.
I was a week late on my period, went to the doctor was told I may have a uti, but was also told that it was too soon, somehow, for my negative pregnancy test to be accurate. I was prescribed nitrofurantoin for the uti. I took the pill that morning and ended up getting my period later that night. I usually last 3days on, but it’s been nearly 7 days and I’m still not only bleeding but having cramps (which aren’t normal for me at all) on and off.
Hello Ms. J, kindly read the following link with regards to this: https://womanjunction.com/can-a-uti-delay-or-stop-your-period/
Hi I’m On my menstrual cycle now and I currently have to take azithromyocin . Would that affect anything ?
Hello Mariah, antibiotics contribute to the absence or delay of periods.
Hi everyone, I have sex with my boyfriend last month and till now I haven’t seen my period. I tested twice and it shown negative. I really Dont what’s happening
Hello Da silva, please take pregnancy test 7 days after missed period to confirm if you might be pregnant.
Thanks a lot Alison! I did the test and it came out negative and still my period is not yet here.
Hello Da Silva, has it come as yet?
Still nothing Alison … I’m stressed
I am taking doxycycline, secnidazole, candid b cream, diclofenac and injected ceftriaxone and I am late on my period could it be the cause?
Hello Pochi, yes the taking of antibiotics are known to delay the period.
Hi, I took antibiotics for uti during my last menstrual period last month (19-21) I had normal menstrual Symptoms last week and till now nothing what could it be? The effect of the antibiotics?
Hi Sarah, yes taking of anti-biotic could be the cause of your delay.
My period started today and I had unprotected sex with my boyfriend same today and I took ampiclox beecham is there a possibility that I will get pregnant?
Hi there Martha, though the risk is less likely you are not 100% out of the woods.
can penicillin mess up your period
7 days late for my period. Took 2 test that showed negative. A week before i took antibiotics for a uti. Coukd this be the cause for my delay?
Hello Angie, yes the taking of antibiotics is the cause for delay.