I'm 39 with 1 child. Went off the pill 3months ago. My period was late...took a home test and it had a very faint positive, but the next day my period started on day 33 very light. Then...on day 17 my period started again but heavier. Now I'm on day 34 and home test showed negative yesterday. Can I be pregnant but the home tests do not pick it up? Do I test again or do bloodtest? My period used to be regular at 25days.