hi in weak sperm the only thing i can think of is slow moving sperm now if it was slow moving sperm i don't think they would make you pregnant if you have had 4 miscarriage's in the past 18 months it could be age related i know 35 may not sound old but it could stem from that. try taken a few months off before you try again like 6 this would give your body a chance to reboot have a look at prenatal vitamins and supplements this way you can build yourself up if you smoke quit if you drink alcohol quit eat healthy foods get out and just do some simple exercises walking and swimming would be to good ones to try. do hope this helps. good luck
can weak sperm cause miscarriage. hi i'm 34 soon to be 35. i've had 4 miscarriages (5-7 weeks)in the past year and a half. i have done lots of blood work the only thing that came up was that i was lupus anticougulant postive (recently put on lovenox clomid baby aspirin folic acid). because i have had 3 previous preg/full term( not with my current partner) the doctor wants my fiancee to get checked out. my fiancee says if he's getting me pregnant its not him that it must be me. can weak/low sperm contribute to miscarriage?