Hello mam, thanks for trusting health care magic.
In my opinion as your urine pregnancy
test is negative get a pelvic ultrasonography
because it can be an early pregnancy or worse ectopic tubal pregnancy and then visit a gynecologist with reports.
If everything is normal then let the periods resume its normal pattern and then plan for pregnancy.
In case you have further questions you can consult me on health care magic forum and i will be happy to help
My URL is http://bit.ly/drmanishajain
Take care and wish you all the best.
Dr Manisha Jain