sex drive

im 31 and my husband is 38. my sex drive use to be crazy in my early 20's but now in my 30's i just rather sleep. 🙈🙈 the last 3 months i bleed everytime we have sex. i havent been to dr yet. but is it possible to lose sex drive and it not be menopause? my sex drive has been low for about a year. we aren't having anymore kids, he has a 17 year old from prev relationship and i have a 13 year old from previous relationship and we are just happy where we are. im not on birth control so if God sees we need another one we will be ok but not trying. leaving it in Gods hands. thanks ladies.