Talk to Gynecologist on Pregnencyy

i have 1 baby boy1.5 yrs old n 1 baby girl 2.5 month old.both normal deliveries.i havnt got periods after 2nd baby birth n today o have checked thr is minor line in the strip which is a sign of pregnency n bhcg is 25 fr today.. i m feeding mother .. my hb is 8 n weight is 110 n in both pregnency i had low lying placenta level 1 at the starting month.. is it safe fr me to keep this pregnency r if i go fr termination it can b terminaed via pills?